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| author | Nikita Kiryanov <nikita@compulab.co.il> | 2013-02-24 21:28:43 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-03-11 11:06:09 -0400 |
| commit | c08804853361bb7c6e2f9e0cdcdc0b327f71fe35 (patch) | |
| tree | c534705bdd53f50cdf361b5715b93aaa46a055ed /README | |
| parent | 48ec52910047e048a5857fdaf00679b85a952ec5 (diff) | |
| download | u-boot-c08804853361bb7c6e2f9e0cdcdc0b327f71fe35.tar.gz u-boot-c08804853361bb7c6e2f9e0cdcdc0b327f71fe35.tar.bz2 u-boot-c08804853361bb7c6e2f9e0cdcdc0b327f71fe35.zip | |
lcd: implement a callback for splashimage
On some architectures certain values of splashimage will lead to
a data abort exception.
Document the problem, and implement a callback for splashimage to
reject such values.
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 11 |
1 files changed, 11 insertions, 0 deletions
@@ -1530,6 +1530,17 @@ CBFS (Coreboot Filesystem) support allows for a "silent" boot where a splash screen is loaded very quickly after power-on. + CONFIG_SPLASHIMAGE_GUARD + + If this option is set, then U-Boot will prevent the environment + variable "splashimage" from being set to a problematic address + (see README.displaying-bmps and README.arm-unaligned-accesses). + This option is useful for targets where, due to alignment + restrictions, an improperly aligned BMP image will cause a data + abort. If you think you will not have problems with unaligned + accesses (for example because your toolchain prevents them) + there is no need to set this option. + CONFIG_SPLASH_SCREEN_ALIGN If this option is set the splash image can be freely positioned |